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3\times 5\left(19-x\right)=4\left(x+38\right)
Variable x cannot be equal to -38 since division by zero is not defined. Multiply both sides of the equation by 6\left(x+38\right), the least common multiple of 6x+4\left(19-x\right),3.
15\left(19-x\right)=4\left(x+38\right)
Multiply 3 and 5 to get 15.
285-15x=4\left(x+38\right)
Use the distributive property to multiply 15 by 19-x.
285-15x=4x+152
Use the distributive property to multiply 4 by x+38.
285-15x-4x=152
Subtract 4x from both sides.
285-19x=152
Combine -15x and -4x to get -19x.
-19x=152-285
Subtract 285 from both sides.
-19x=-133
Subtract 285 from 152 to get -133.
x=\frac{-133}{-19}
Divide both sides by -19.
x=7
Divide -133 by -19 to get 7.